But seriously, yeah, disincentivizing fraud is going to be best for everyone in the long run, including the business itself.
A good accountant can always find ways to cook the books. Accounting systems are nothing new and none have made a dent in false reporting.
I'm thinking about the long term. If blockchain accounting becomes mandatory in the future and all businesses have to be connected, there's less opportunity to fraud. For example, it won't be possible to move expenditure to a different time period for tax benefits or deceiving stockholders unless both parties agree to fraud.
Although I agree there will probably be new ways to cheat.